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对优质粳稻华粳 2号不同密度、不同氮肥使用量的配比试验结果表明 :华粳 2号是一个分蘖性中等、需肥量中等偏高的品种 ,在单位面积穗数适宜的情况下 ,高产对每穗总粒数的要求大于单位面积穗数和千粒重 ,最佳的栽培因子水平及组合是基本苗15 0万 /hm2 ,施纯氮 3 0 0kg/hm2 。
The results showed that Huajing 2 was a mid-tillering middle-yielding cultivar with medium-high fertilizer requirement. Under the appropriate spike-per-unit area, The requirement of high yield for total grain number per panicle was larger than the number of panicle per plant and 1000-grain weight. The best cultivation factor level and combination were basic seedlings of 1.5 million / hm2 and pure nitrogen of 300 kg / hm2.